.header{
  width: 100%;
	position: fixed;
  top: 0;
  z-index: 99;
  /* left: 0; */
  background-color: transparent;
  height: 100px;
  display: flex;
  justify-content: space-around;
  line-height: 100px;
  margin: 0px auto;
  margin-bottom: 0;
}
.header .logo{
  width: 100px;
  height: 100px;
  background-color: white;
  margin-left: 75px;
  position:absolute ;
  top: 0;
  left: 0;
  /* display: block; */
}
.header .logo img{
  width: 100%;
  background-color: white;
}
.header input{
  height: 20px;
  text-decoration: none;
  border: none;
  border-bottom: 1px solid black;
  text-indent:2px;
  /* background-color:transparent; */
  outline: none;
  resize: none;
  /* border: none; */
  background: none;
  color: #333;
}
.header .right{
  display: flex;
  justify-content: space-around;
  margin-left: 300px;
  font-size: 14px;
}
.header .right .inp{
  font-weight: 750;
}
.header .right p {
  display: none;
  margin-left: 15px;
}
.header .right p.active {
  display: block;
}
.header .right p .icon-suozi{
  color: black;
  margin-left: 15px;
}
.header .right .login,.register {
  margin-left: 15px;
}
html,body {
  width: 100%;
  height: 100%;
  /* position: relative; */
}
footer{
  background-color:#03234c;
  height: 50px;
  width: 100%;
  line-height: 50px;
  position: relative;
  left: 0;
  bottom: 0;
  display: flex;
  color: white;
  font-size: 12px;
} 
 footer #bot{
  width:200px ;
  height: 50px;
  display: flex;
  justify-content: space-evenly;
  font-size: 12px;
  color: white;
  margin-left: 20px;
  /* background-color:yellow; */
}
footer .guan {
  position: absolute;
  top: 0;
  left: 240px;
}
footer .trade{
  height: 30px;
  width: 400px;
  color: gray;
  display: flex;
  flex-direction: column;
  position: absolute;
  right: 0;
  top: 0;
  justify-content: space-between;
  margin-top: -10px;
}
footer .trade p{
  height: 12px;
}


.center{
  width: 100%;
  /* height: 720px; */
  display: flex;
  justify-content: space-between;
  margin-top: 100px;
}
.center .catalogue{
  padding-top: 20px;
  width: 250px;
  height: 519px;
  /* border: 1px solid black; */
  text-align: center;
  font-size: 16px;
  font-weight: 700;
}
.center .catalogue .popular a{
  border-top: 1px solid gainsboro;
  color: black;
  text-decoration: none;
  padding-top: 8px;
}

.center .content {
  width: 100%;

}
.center .content .top{
  width: 100%;
  height: 40px;
  display: flex;
  justify-content: space-between;
}
.center .content .top > p {
font-size: 18px;
color: black;
font-weight: 700;
}
.center .content .top div{
  display: flex;
  justify-content: space-between;
}
.center .content .top p:nth-child(1) {
  font-size: 15px;
color: black;
font-weight: 700;
margin-right: 10px;
}
.center .content .top div select{
  height: 20px;
  margin-left: 10px;
}
.center .content .page{
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;

}
.center .content .page li{
  width: 20%;
  height: 340px;
  
}
.center .content .page li img{
  width: 250px;
  height: 250px;
  
}




.server{
  width: 100px;
  height: 40px;
  border: 1px solid black;
  position: fixed;
  bottom: 300px;
  right: 0;
  background-color: white;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
  z-index: 99;
}
.server a {
  color: black;
  text-decoration: none;
}
.header p a {
  color: black;
  text-decoration: none;
}
.center p a {
  color: black;
  text-decoration: none;
}
/* .footer{
  position: none;
} */

.catalogue ul, ol, li {
  list-style: none;
}


.catalogue > ul:nth-child(3) {
  margin-left: -20px;
}
.catalogue > ul > li:nth-child(3){
  padding-bottom: 8px;
}

.catalogue ul > li {
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
}

.catalogue ul > li::before {
  content: '+';
}

.catalogue ul > li.active::before {
  content: '-';
}

.catalogue ul > li > ol {
  display: none;
  font-size: 14px;
  font-weight: normal;
}

.catalogue > ul:nth-child(5){
  padding-top: 200px;
  
}
.catalogue > ul:nth-child(5) p{
 text-align: center;
 font-size: 16px;
 font-weight: normal;
 margin-left: 5px;
}
.catalogue> ul:nth-child(5) > li {
  font-size: 16px;
  font-weight: normal;
}
.catalogue > ul:nth-child(5) > li > ol > li{
  padding-left: 15px;
}







